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Finding the Fourth Proportional to 3,836,573.92, 5,294,472.30 and 2,117,694.88

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Solution

The fourth proportional to 3,836,573.92, 5,294,472.30 and 2,117,694.88 is: 2,922,419.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,836,573.92 : 5,294,472.30 = 2,117,694.88 : x
  2. Step 2: Convert to fraction form
    3,836,573.92/5,294,472.30 = 2,117,694.88/x
  3. Step 3: Cross multiply
    3,836,573.92x = 5,294,472.30 × 2,117,694.88
  4. Step 4: Simplify right side
    3,836,573.92x = 11,212,076,882,011.82
  5. Step 5: Solve for x
    x = 11,212,076,882,011.82/3,836,573.92
  6. Step 6: Final answer
    x = 2,922,419.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.